Posts Tagged ‘Protoplanet’

Dragon has demated from the ISS and is scheduled to make its deorbit burn at 7:51 Phoenix time (1451 UTC).

30 May

Astronomer Jason Kalirai of the Space Telescope Science Institute in Baltimore, Maryland, has created a new method to measure the ages of individual halo stars. His technique exploits a basic concept of stellar evolution: The heavier a star is, the faster it dies. Halo stars die by becoming red giants and then white dwarfs—dense stars little larger than Earth. White dwarfs have no nuclear activity, so as they age, they cool and fade. Thus, the hottest and brightest of these burnt-out stars entered the white-dwarf stage most recently.

Preparations for the second landing of the X-37B, the Air Force’s unmanned, reusable space plane, are underway at Vandenberg Air Force Base. While the exact landing date and time will depend on technical and weather considerations, it is expected to occur during the early- to mid-June timeframe. Space professionals from the 30th Space Wing will monitor the de-orbit and landing of the Air Force’s X-37B Orbital Test Vehicle mission, called OTV-2.

29 May

Excalibur Almaz has detailed its plans to launch spacecraft to space stations in orbit around the moon, the first time the secretive company has done so publically. The British company will use legacy Russian hardware, capsules from the Soviet Soyuz space programme and space stations from Salyut, to launch people into orbit around the moon. Both capsules and stations will undergo upgrades, but the basic hardware has flown in space up to nine times, and is described by Excalibur CEO Art Dula as have a technical readiness level of nine, the highest possible.

A Chinese Long March 4C has launched with a military payload, understood to be the Yaogan 15 military satellite, from the Taiyuan Satellite Launch Center. Launch was recorded at 0731 UTC, catching out most observers, with the only news of the launch on Tuesday leaking out on the internet, prior to official media reports of a successful ride to orbit.

28 May

With Dragon now installed and ingressed on the International Space Station (ISS), Canada’s Dextre robot took an opportunity to greet the new spacecraft on Sunday. The SPDM (Special Purpose Dexterous Manipulator) was translated to the SpaceX vehicle to practice the removal of cargo from the trunk, a key element of future Commercial Resupply Services (CRS) missions.

27 May

China launched a satellite late Saturday for civil and possibly military communications. The Long March 3B rocket lifted off from the Xichang Satellite Launch Center at 8:56 AM Phoenix time (1556 UTC) Saturday and placed the 5,200-kilogram Chinasat 2A satellite into a geosynchronous transfer orbit.

26 May

The hatch on the Dragon spacecraft has been successfully opened, and the ISS crew is beginning to unload the 1014 lbs of cargo brought up on the spacecraft. 1367 lbs of cargo is scheduled to return on Dragon on 31 May.

A giant distributed radio telescope will be split over sites in South Africa and Australia, astronomers announced Friday. The Square Kilometer Array (SKA) Organization said Friday that dishes for the radio telescope will be built on sites in South Africa and Australia, with the majority of the telescopes being placed in South Africa.

25 May

Dragon is berthed to the International Space Station.

The Dragon spacecraft has passed all of the Approach tests and is proceeding toward Capture.

Boeing successfully completed the software Preliminary Design Review (PDR) for its Commercial Crew Development (CCDev-2) initiative on May 18. CCDev-2 is part of NASA’s Space Act Agreement. Software competency is essential to all operational aspects of Boeing’s Crew Space Transportation (CST)-100 spacecraft, including launch, orbital maneuvering, docking with and separating from the International Space Station, re-entry and landing. The PDR team analyzed the system’s flight software, including details regarding safety, testing, overall redundancy management, avionics hardware and ground systems.

XCOR announced today that it has achieved a key technical milestone with its flight weight rocket piston pump hardware. XCOR engineers have successfully and repeatedly pumped liquid oxygen (LOX) at flow rates required to supply the Lynx suborbital vehicle main engines.

The Union of Concerned Scientists (UCS) announced Monday that Iran is set to launch a satellite called Fajr (or “Dawn”) atop a Safir 1B rocket on a mission to demonstrate the country’s first use of a maneuverable spacecraft in orbit.

The SpaceX Dragon capsule has completed Flight Day 1 objectives (under final review by NASA and SpaceX), and will spend Flight Day 2 raising its orbit as it approaches the International Space Station. If all objectives are met, grappling is set for 1206 UTC Friday.

22 May

SpaceX successfully launched their Falcon 9 rocket and placed the Dragon capsule on a rendezvous path to the International Space Station (ISS). If all tests are successful, grappling and connecting to the ISS will occur on Friday morning.

When SpaceX’s Dragon capsule launches in spring 2012, a very special payload will be on board: 15 student experiments from the Student Spaceflight Experiments Program. The big deal is that those experiments from “SSEP Mission 1 to ISS” will be part of space history. Dragon will become the first commercial vehicle to dock to the International Space Station, and these student experiments have the distinction of being the only payload on board.

21 May

Charlotte Kiang lists four reasons why the aborted SpaceX launch on Saturday morning was not a failure.

The SpaceX Falcon 9 launch vehicle aborted following engine start. Engine 5 recorded high pressure. The launch will be rescheduled for 22 May (NET).

From SpaceX on Facebook: “Engineers replacing failed valve on engine #5 following today’s abort. Data review Sunday, if all looks good next attempt is Tues. May 22 at 3:44 AM ET”.

18 May

NASA and SpaceX held a pre-launch briefing this afternoon at Kennedy Space Center. View the briefing here.

A Japanese H-2A rocket launched four satellites on Friday, including a Japanese earth sciences spacecraft and a South Korean remote sensing satellite. The H-2A 202 lifted off from the Tanegashima Space Center at 9:39 pm Phoenix time Thursday (1639 UTC) and placed four satellites into Sun-synchronous orbits.

A Proton rocket launched a Canadian commercial communications satellite early Friday. The Proton-M rocket lifted off from the Baikonur Cosmodrome at 12:12 pm Phoenix time Thursday (1912 UTC Thursday) carrying the Nimiq 6 satellite. The Proton’s Breeze-M upper stage released the spacecraft into geosynchronous transfer orbit a little over nine hours later. Nimiq 6 was built by Space Systems/Loral and weighed about 4,500 kilograms at launch, carrying 32 Ku-band transponders.

17 May

A Soyuz spacecraft carrying three new ISS crew members docked with the orbiting outpost early Thursday. The Soyuz TMA-04M docked with the Poisk module of the ISS at 12:36 am EDT (0436 GMT) Thursday, two days after launch from Kazakhstan, and hatches opened at 4:10 am EDT (0810 GMT). On board the Soyuz were Russian cosmonauts Gennady Padalka and Sergei Revin and American astronaut Joseph Acaba, who brought the station’s crew complement back to six.

16 May

An Ariane 5 rocket successfully launched a pair of Lockheed Martin-built communications satellites for Japan and Vietnam on Tuesday evening. The Ariane 5 ECA lifted off from Kourou, French Guiana, at 6:13 pm EDT (2213 GMT) Tuesday and placed the JCSAT-13 and Vinasat-2 communications satellites into geosynchronous transfer orbit about a half-hour later.

The Soyuz TMA-04M spacecraft with the new crew for the International Space Station (ISS), launched from the Baikonur Space Center in Kazakhstan on Tuesday, will dock with the ISS on Thursday morning in an automatic mode. The spacecraft will dock with the Poisk research module of the ISS Russian segment at 1:38 AM Phoenix time (0438 UTC).

15 May

A Soyuz FG rocket launched the Soyuz TMA-04M (RSC Energia) spacecraft carrying three new International Space Station crew members on Tuesday. The Soyuz rocket lifted off from the Baikonur Cosmodrome at 8:01 pm Phoenix time Monday (0301 UTC Tuesday) and placed the Soyuz TMA-04M spacecraft into orbit. On board the Soyuz are Russian cosmonauts Gennady Padalka and Sergei Revin and American astronaut Joseph Acaba. The Soyuz will dock with the ISS at 11:39 pm EDT Wednesday (0339 GMT Thursday).

The Atlantic has an extensive by Ross Andersen with Sara Seager, a Professor of Planetary Science at MIT, on the plans of Planetary Resources to mine asteroids.

Scientists analyzing data from NASA’s Dawn spacecraft orbiting the large asteroid Vesta have concluded that the body has some of the key characteristics of a planet, suggesting it is a protoplanet left over from the solar system’s formation. Observations of the asteroid show that it is a differentiated body, featuring an iron core with a radius of 110 kilometers as well as a mantle and crust.

13 May

The Indian Space Research Organization on Saturday successfully tested the indigenous cryogenic engine at the Liquid Propulsion Systems Centre (LPSC) at Mahendragiri for 200 seconds. The engine will undergo another two more tests, including endurance test of 1,000 seconds and vacuum ignition test. The engine is scheduled to propel GSLV D-5 in September or October.

John Kelly heaps scorn on the Congressional move to force NASA to prematurely select a single manned spacecraft contractor, “History shows going with one contractor results in years of delays and billions of dollars in cost overruns. Every past space transportation system development effort has become a cost and schedule boondoggle, often made worse by cost-plus contracting.”

12 May

One of the key pre-launch requirements for SpaceX’s upcoming Dragon mission to the ISS, the completion of software validation tasks for the spacecraft’s approach and berthing with the orbital outpost, has been passed, pending the expected completion of “action items”. The milestone means the latest launch date target of May 19 now holds a large amount of confidence.

Scientists are on an epic treasure hunt for meteorite fragments from a spectacular fireball that lit up the daytime sky over California last month. The space rocks came from a minivan-size asteroid that plunged through Earth’s atmosphere and exploded into a dazzling daytime fireball over California and parts of Nevada on April 22. Meteorite fragments were scattered around Sutter’s Mill, an old sawmill in Coloma, California.

11 May

The Sun moves much more slowly relative to nearby interstellar space than was previously thought, according to scientists working on NASA’s Interstellar Boundary Explorer (IBEX) mission. Their study casts doubt on the existence of an abrupt “bow shock” where the edge of the solar system meets the interstellar medium – instead suggesting that the boundary between the two regions is much gentler.

Virgin Galactic expects to resume flight tests of its SpaceShipTwo suborbital vehicle as early as June from manufacturer Scaled Composites’ facility in Mojave, California. SpaceShipTwo has not flown since its 16th glide flight in September, 2011, when it entered a tail stall upon release from its WhiteKnightTwo carrier aircraft.

Envisat, an enormous Earth-observing satellite that was officially declared dead in space Wednesday (May 9) may stay in orbit for the next 150 years, posing a threat to other spacecraft zipping around our planet.

NASA’s Dawn spacecraft won’t end its 13-month-long visit to Vesta, the Solar System’s second biggest asteroid, until August, but researchers have now solidified the rock’s reputation as an archetype for understanding planetary evolution. In six reports in the 11 May edition of Science, Dawn mission scientists have confirmed several long-held assumptions about Vesta and detailed some puzzles about the roughly 520-kilometer-diameter body.

9 May

Four days after the launch of Tianhui-1B mapping satellite, China has launched a new optical remote sensing satellite on May 10, 2012 from the Taiyuan Satellite Launch Center. Launch of Yaogan Weixing-14 (YG-14) satellite took place at 07:06UTC using a Long March 4B (Chang Zheng-4B) launch vehicle from the LC9 launch complex.

OpenMarket.org has a screed about “Republican Space Socialism Update”, taking House Appropriations Chairman Frank Wolf (R-Virginia) to task for decrying the wastefulness of competition in the Commercial Crew Development program.

8 May

Unionized workers at United Launch Alliance (ULA), the Boeing-Lockheed Martin joint venture that makes the Atlas and Delta launch vehicles, ratified a new contract by default on Sunday when a strike vote fell just short of passage. Members of the International Association of Machinists and Aerospace Workers (IAMAW) voted Sunday to reject a three-year contract offered by ULA, but a subsequent vote on whether to strike fell just short of the two-thirds majority needed to authorize a strike. Because the strike vote failed, the new contract went into force at midnight Monday.

Commercial remote sensing company DigitalGlobe has rejected a offer by rival GeoEye to acquire the company, saying it will wait until the end of the federal budget cycle to make a decision on whether to make its own bid to acquire GeoEye. DigitalGlobe said in a statement Sunday that the $17-per-share offer by GeoEye “substantially undervalues” the company.

7 May

Preparations for Orion’s first journey into space are accelerating, as flight controllers at the Johnson Space Center (JSC) fire up the former Shuttle Flight Control Room (FCR) for mission simulations, while Michoud Assembly Facility (MAF) engineers finalize the vehicle’s baseline construction, ahead of shipping Orion to the Kennedy Space Center (KSC) for outfitting.

In a study published online today in the Proceedings of the National Academy of Sciences, astronomers analyzing 63 hot Jupiters (depicted above) detected by NASA’s Kepler spacecraft have found no planets comparable in size to Earth orbiting nearby. In contrast, many hot Neptunes—close-in giant worlds with roughly 5% of Jupiter’s mass—do have planetary neighbors. The findings may mean that hot Jupiters assume their peculiar orbits after far-off giant planets kick them close to their suns. As the hot Jupiter dashes inward, its gravity ejects any smaller planets near the star, both explaining the absence of close planetary neighbors and suggesting that solar systems with hot Jupiters are unlikely to host life-bearing worlds resembling Earth.

6 May

China launched the second TH-1 Tianhui-1 satellite – Tianhui-1B – on Sunday, using a Long March 2D (Chang Zheng-2D) launch vehicle from the Jiuquan Satellite Launch Center. Launch took place at 07:10UTC from the 603 launch pad from the LC-43 launch complex. Tianhui-1B will conduct Earth-mapping using stereo-topographic techniques.

5 May

Supermoon: “We will have moon closest to the Earth at the exact moment, or within a minute or two of when it becomes full,” says Andrew Fraknoi at Foothill College in Los Altos, Calif., and senior educator at the Astronomical Society of the Pacific. “And this has no cosmic danger or significance but it means the moon will be a little bit brighter and a little bit bigger in our sky.”

NASA issued the following statement from William Gerstenmaier, associate administrator for Human Exploration and Operations at the agency’s Headquarters in Washington: “After additional reviews and discussions between the SpaceX and NASA teams, we are in a position to proceed toward this important launch. The teamwork provided by these teams is phenomenal. There are a few remaining open items but we are ready to support SpaceX for its new launch date of May 19.”

4 May

SpaceX and NASA are nearing completion of the software assurance process, and SpaceX is submitting a request to the Cape Canaveral Air Force Station for a May 19th launch target with a backup on May 22nd.

3 May

The European Space Agency (ESA) announced Wednesday that it has chosen a mission to several of Jupiter’s largest moons as its next large mission, confirming a choice made last month by an agency panel. The JUpiter ICy moon Explorer, or Juice, is planned for launch in 2022 and arrive at Jupiter in 2030. The spacecraft would fly by the Galilean moons of Callisto and Europa before entering orbit around Ganymede, the solar system’s largest moon.

ULA: “The launch of an Atlas V carrying the United States Air Force’s Advanced Extremely High Frequency-2 (AEHF-2) payload was scrubbed today due to lack of helium flow from the ground support equipment to the Interstage Adapter compartment on the launch vehicle. The Atlas V vehicle and AEHF-2 are safe and secure at this time. The launch is rescheduled for Friday, May 4 from Space Launch Complex-41 at Cape Canaveral Air Force Station, Fla. The opening of the launch window is 2:42 p.m. EDT and extends until 4:42 p.m. The forecast for May 4 shows an 80 percent chance of favorable weather conditions for the launch tomorrow. “

SpaceX said Wednesday it is “unlikely” that Monday’s scheduled launch of a Dragon spacecraft on a Falcon 9 rocket will proceed because of additional testing being done on the spacecraft. The company said in a brief statement Wednesday afternoon that the Monday morning launch was unlikely to take place as scheduled to allow the company more time to work on software assurance issues regarding the Dragon spacecraft with NASA. No official launch delay had yet been announced, although some NASA documents has already pushed the launch back to the backup date of May 10.

1 May

Senior scientists and heads of the five International Space Station partners will present ground-breaking research and discuss future projects in Berlin on 2–4 May. Follow the first International Space Station symposium live on the web through its dedicated website. Visit www.isssymposium2012.com to follow the conference in real time.